Algo Java Developer

IO TECH SOLUTIONS LIMITED; Hong Kong; On-site; HKD 900,000 - 1,400,000; Full time

Job summary

IO TECH SOLUTIONS LIMITED is seeking a skilled developer to design, develop and maintain Java-based backend applications for equities trading and financial markets. You will help build high-performance, event-driven trading systems across the full software development lifecycle.

As part of a collaborative team, you will work with business and technology stakeholders to deliver robust solutions for trading and market-facing applications, leveraging Agile practices and a strong grasp of JVM

Qualifications

• Experience building large-scale event-driven and reactive systems, fault-tolerant and globally distributed.
• Strong Java and/or C++ development with threading, networking, and data structures knowledge.
• Familiarity with trading systems, order processing, market data or execution applications.
• Production-ready code delivery in Agile / TDD environments.
• Understanding of Linux internals, memory management, and TCP/UDP networking.
• Knowledge of JVM internals, GC, JNI and related tooling is beneficial.
• Knowledge of Aeron is preferred.
• Degree in CS / Engineering / Physics / Mathematics or related technical field.

Responsibilities

• Design, develop and maintain Java-based backend applications for equities trading and financial markets.
• Build high-performance, event-driven trading systems across the software development lifecycle.
• Collaborate with business and technology stakeholders to deliver robust solutions for trading and market-facing applications.

Skills

Event-driven systems

Java development

C++ development

Multithreading

Networking

Data structures & algorithms

Agile / TDD

Linux internals

JVM internals

Aeron

Education

Bachelor's degree in Computer Science / Engineering / Physics / Mathematics

Tools

Aeron

Job description

Development

• Design, develop and maintain Java-based backend applications for equities trading and financial markets.
• Build and enhance high-performance, event-driven trading systems across the full software development lifecycle, from requirements through deployment.
• Work closely with business and technology stakeholders to deliver robust solutions for trading and market-facing applications.

Requirements

• Strong experience developing large-scale, complex event-driven / reactive systems, including fault-tolerant and globally distributed applications with high-frequency message and event workflows.
• Strong Java and/or C++ development experience building high-performance systems, with solid knowledge of multithreading, concurrency, networking and data structures & algorithms.
• Good understanding of financial markets and instruments, ideally across Equities, FX, Derivatives, Commodities or Risk.
• Experience working on trading systems, order processing, market data, trade capture or execution-related applications is highly relevant.
• Strong focus on code quality, testing and delivering production-ready solutions within Agile / TDD environments.
• Good knowledge of CPU/GPU architecture, memory management, shared memory / memory-mapped files, TCP/UDP and Linux internals.
• For Java developers, knowledge of JVM internals, GC, JNI, Java Unsafe and JNR-FFI is advantageous.
• Knowledge of Aeron is preferred.
• Degree in Computer Science, Engineering, Physics, Mathematics or a related technical discipline.